Food Quality and Safety
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2020
·Vol. 4
·期 4
·193-201
·
IF 0
Liu Bei,Xu Qingqing,Sun Yujing
Goji berry tea, a traditional herbal tea, is the main ate mode of goji berry in Asia, yet few studies in comparison with red goji berry tea and black goji berry tea are carried out. This study investigated the effects of water temperature and soak time on the colour, phytochemicals, and the antioxidant capacity [2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 2,2-diphenyl-1-picrylhydrazyl radical (DPPH), and the ferric-reducing antioxidant power (FRAP)] of two goji berry tea. A comparison of the bioactive compounds and antioxidant activities between black and red goji berry tea was conducted. Results showed that both red and black goji berry tea were rich in phytochemicals, giving high antioxidant ability. The levels of bioactive compounds and the antioxidant activity of the two goji berry tea increased as the increases in soak temperature and time. Black goji berry tea had higher phytochemicals and antioxidant property than those of red goji berry tea. Infused at 100° water for the same time, the levels of total polysaccharides (150 mg/100 ml), total polyphenols (238 mg/ml), and antioxidant capacity (550 μmol/100 ml) of black goji berry tea were 3.5, 2, and 5 times higher, respectively, in comparison with red goji berry tea. The results of this study demonstrate that hot drink of goji berry in China is a good habit and black goji berry tea may be a better choice.
研究领域:
食品科学
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植物化学
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营养学
✓ 已验证
产品关联
DOI
FOOD CHEMISTRY
·
2022
·
IF 9.231
Yuhang Hu,Xuhui Kan,Tingting Yang,Xia Fan,Wangting Zhou,Guijie Chen,Yamei Yan,Lu Lu,Jia Mi,Xiaoxiong Zeng,Youlong Cao
Chlorogenic acids are important phenolics in the fruits of wolfberry, but little attention has been paid on their glucosylated forms. In the present study, a glucosylated form of chlorogenic acid was isolated from the fruits of Lycium barbarum L. var. auranticarpum K. F. Ching (also called yellow wolfberry) and identified to be (-)-5- O -(3- O -β- d -glucopyranosylcaffeoyl)-quinic acid (5-CQA-3′βG) by high resolution mass spectrometry and nuclear magnetic resonance spectrometry. The content of 5-CQA-3′βG in the dried fruit was determined as 0.0293 ± 0.0015% by HPLC. In addition, 5-CQA-3′βG showed a good scavenging capacity for 2,2′-azino-bis-(3-ethylben-zothiazoline-6-sulphonate) free radicals but had a relatively low reducing power and scavenging capacity for 2,2-diphenyl-1-picrylhydrazyl free radical. Moreover, the secretion of nitric oxide, tumor necrosis factor-α and interleukin-6 as well as related mRNA expression were reduced in lipopolysaccharide-stimulated RAW264.7 macrophage cells treated with 5-CQA-3′βG. This is the first report describing purification, identification and bioactivity of glucosylated CQA from yellow wolfberry.
研究领域:
植物化学
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生物化学
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药理学
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免疫学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Omega
·
2023
·
IF 4.1
Lei Ding,Xuan Zhou,Xiaojie Liang,Yujin Dong,Cunbao Fang,Yueming Wu,Beixing Li,Wei Mu,Jin Lin,Yuekun Li
Pesticide residue has become the main technical barrier that restricts the export of Chinese wolfberry. Can we achieve high efficacy and low safety risk by balancing pesticide deposition on the leaves and fruits of Chinese wolfberry? In this research, the structural characteristics and wettability of leaves and fruits of Chinese wolfberry at different growth stages were studied. The adaxial and abaxial surfaces of leaves were hydrophobic, whereas the fruit surfaces were hydrophilic. Adding spray adjuvant could increase the retention of droplets on the leaf surfaces of Chinese wolfberry by 52.28–97.89% and reduce the retention on the fruit surfaces by 21.68–42.14%. A structural equation model analysis showed that the adhesion tension was the key factor affecting the retention of the solutions among various interface behaviors. When the concentrations of Silwet618, AEO-5, Gemini 31551, and 1227 were 2–5 times higher than their CMCs, the retention of pesticide solutions (pyraclostrobin and tylophorine) on Chinese wolfberry leaves significantly increased, and the control efficacies on aphids and powdery mildew also dramatically improved (65.90–105.15 and 41.18–133.06%, respectively). Meanwhile, the retention of pesticides on the fruit of Chinese wolfberry was reduced. This study provides new insights into increasing the utilization of pesticides in controlling pests and improving food safety.
研究领域:
植物保护
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食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Lisi Liang,Lianzhu Lin,Mouming Zhao
Lycium barbarum polysaccharide (LBP) is a prebiotic that promotes the proliferation of beneficial bacteria, but lacks of regulatory function on harmful bacteria. In this study, chlorogenic acid (CGA) was used to achieve the functional enhancement of two LBPs (LBP-A and LBP-M). The combination of CGA resulted in changes in the solution properties of LBPs, manifested as increased pseudoplasticity, viscosity, turbidity, and decreased water mobility, absolute potential value, pH value. CGA was non-covalently bound to LBPs through hydrophobic interaction and hydrogen bond. LBP-A had strong affinity with CGA, mainly through hydrophobic interaction, while LBP-M had weak affinity with CGA, mainly through hydrogen bond. Both LBP-CGA complexes exhibited Bacteroides proliferative activity and gut pathogens inhibitory activity, among which LBP-A-CGA complex showed strong inhibitory effects on Escherichia coli and Bacillus cereus , and LBP-M-CGA complex showed strong inhibitory effect on Staphylococcus aureus . This study provided guidance for the development of LBP-CGA as novel prebiotic.
研究领域:
食品科学
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微生物学
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营养学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF FOOD PROPERTIES
·
2017
·
IF 1.427
Meican Niu,Jun Huang,Yao Jin,Chongde Wu,Rongqing Zhou
The effect of oak matrix (medium toast barrel, medium toast shavings, non-toast chips, light toast chips, medium toast chips, and heavy toast chips) on the volatiles and antioxidant activity in Goji wine, a novel functional but aroma lackluster wine, were investigated. Results showed that the oak matrix used for Goji wine during aging improved its volatile profile and enhanced its antioxidant activity, depending on the toast degree and particularly the type of oak matrix. With regard to the volatiles of Goji wine, the oak shavings sample was the most efficient for the esters formation and the release of oak-related compounds. The analysis of odour activity values of volatiles in Goji wine also showed that the flavour of woody, vanilla, and clove was the highest in the oak shavings sample, which were related to the compounds such as cis- and trans-whisky lactone, vanillin, eugenol, isoeugenol, and 4-vinylguaiacol. According to the sensory analysis, the oak shavings samples had the highest score in olfactory and gustative. In addition, results of the effect of oak matrix on antioxidant activity of Goji wine indicated that Goji wine treated with oak shavings exhibited the highest antioxidant activity thanks to the high content of phenols (5.47 g/L GAE) and flavonoids (0.36 g/L).
研究领域:
食品科学
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植物学
✓ 已验证
DOI
高影响因子
International Journal of Food Engineering
·
2020
·Vol. 16
·期 11
·
IF 1.022
Jitian Song,Shi Dongqi,Su Hang,Feng Yongxia,Tian Wei
Ultrasonic extraction was a new development method to achieve high-efficiency extraction of Lycium barbarum polysaccharides instead of hot water extraction. In this paper, the single factor method combined with the box Behnken design of response surface method was used to study the influence of extraction time, extraction temperature, material liquid ratio and ultrasonic power on the extraction rate of L . barbarum polysaccharide. The results indicated that the best extraction rate of L . barbarum polysaccharide was 12.54 ± 0.12% under the conditions of 80 min for extraction time, 73 °C for extraction temperature, 1 g:38 mL for material to liquid ratio, and 185 W for ultrasonic power. Under the same operating conditions, the yield of L . barbarum polysaccharide using ultrasonic extraction was 83.3%, which was higher than that hot water extraction. Moreover, the extraction time of ultrasonic extraction was only 47% of that using hot water extraction. This suggested that there was great potentials of using ultrasonic extraction in the realization of high-efficiency extraction of L. barbarum polysaccharide. The results of this study could also provide a theoretical basis for the coupling of ultrasonic extraction and ultrasonic concentration process to develop the integrated equipment of both ultrasonic extraction and ultrasonic concentration.
研究领域:
食品科学
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植物化学
✓ 已验证
DOI
高影响因子
FOOD CHEMISTRY
·
2020
·
IF 6.306
Shuo Shi,Wentao Zhang,Xinnan Liu,Xinyi Ren,Min Li,Jing Sun,Yutang Wang,Tianli Yue,Jianlong Wang
Lycium barbarum L. polysaccharides (LBPs) with outstanding biological activities are of increasing interest. Traditional purification approaches are time-consuming and often involve toxic solvents that destroy the functionality and structure of polysaccharides. Herein, we report a sustainable and nondestructive strategy for purifying LBPs using graphene-based nano-decoloration. The amination of graphene oxide (GO) enables the resulted aminated reduced GO (NH 2 -rGO) with abundant sp 2 -hybridized carbon domains, displaying high adsorption capacity toward pigments in crude polysaccharides. As such, within 5 min, NH 2 -rGO can highly effectively and fast to decolor LBPs, with a high decoloration ratio of 98.72% and a high polysaccharides retention ratio of 95.62%. Importantly, compared with traditional decoloration methods, NH 2 -rGO is nondestructive toward LBPs and has good reusability. Moreover, it exhibited widespread-use decoloration performance to decolor several common plant species. Overall, our proposed nano-decoloration approach is a general-purpose, sustainable, and nondestructive method to purify LBPs.
研究领域:
植物学
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生物化学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2021
·
IF 6.953
Guoyan Liu,Xue Yang,Jixian Zhang,Li Liang,Feng Miao,Tao Ji,Zhiqiang Ye,Meng Chu,Jiaoyan Ren,Xin Xu
Lycium barbarum polysaccharides (LBP) with different molecular weights (LBP1, LBP2 and LBP3) of 92,441 Da, 7714 Da, and 3188 Da were used as stabilizers and capping agents to prepare uniformly dispersed selenium nanoparticles (SeNPs), and determined the storage stability. In addition, the anti-fatigue activity of LBP-decorated SeNPs with the best stability (LBP1-SeNPs) was estimated by using forced swimming test . The results showed that LBP1-SeNPs exhibited smaller particle size and more excellent stability than those of LBP2-SeNPs and LBP3-SeNPs when the storage time was extended to 30 days, and the average particle size was maintained at about 105.4 nm. The exhaustion swimming time of all tested dose groups of LBP1-SeNPs was significantly longer than the control group ( p < 0.05), and the high-dose group among them was even obviously longer than the positive group ( p < 0.05). The results of glycogen, blood urea nitrogen (BUN), blood lactic acid (BLA), superoxide dismutase (SOD), and malondialdehyde (MDA) levels were further confirmed that LBP1-SeNPs could relieve fatigue by increasing the reserve of glycogen, enhancing antioxidant enzyme levels and regulating metabolic mechanism. These results demonstrated that LBP1-SeNPs could be developed as a potential anti-fatigue nutritional supplement.
研究领域:
食品科学
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纳米生物学
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营养学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
·
2025
·
IF 10.3
Lin-An Cao,Yi-Qian Li,Lu Sun,Sai Chu,Yun-Fei Huo,Xiao-Qin Li,Jia-Hui Guo,Fang-Li Yuan,Kenichi Otake,Dai-Lian Wang,Ming-Shui Yao
The sulfur-fumigation process not only induces the chemical transformation of Lycium barbarum (Lb, a widely used traditional Chinese medicine) but also severely influences human health. Given the existing challenges like the complex and time-consuming operation, as well as the high technical demands of the current detection methods for sulfur-fumed Lycium barbarum (SF-Lb), this paper employs a simple chemiresistor to carry out discrimination research between Lb and SF-Lb which have significant differences in volatolomics. The sensor is constructed by a conductive metal-organic framework (cMOF) thin film, Cu 3 (HHTP) 2 , due to its abundant active sites, excellent electron transfer performance as well as the capacity to detect specific groups of volatile organic compounds (volatolomics). Consequently, the response values of the Cu 3 (HHTP) 2 -based sensor to 0.5 g SF-Lb (151.74%) are significantly higher than those to normal Lb (80.07%), identifying SF-Lb simply and rapidly with an accuracy of ∼100%. Our work investigates volatolomics of SF-Lb and establishes a new rapid discrimination method for sulfur-fumed traditional Chinese herbs.
研究领域:
中药学
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分析化学
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传感技术
✓ 已验证
产品关联
DOI
高影响因子
TALANTA
·
2019
·
IF 4.916
Mohammad Chand Ali,Jia Chen,Haijuan Zhang,Zhan Li,Liang Zhao,Hongdeng Qiu
The efficient extraction of natural products from biomass is deemed an essential area of interest using green technology in the pharmaceutical and biochemical industries. In recent years, deep eutectic solvents (DESs) have been paying broad interest as compatible, safe, and inexpensive solvents. In this study, we addressed, for the first time, to give a fruitful illustration to extract bioactive compounds from favourite Lycium barbarum L. fruits using DESs as green designer solvents, and displaying the tuneability of DESs to extract bioactive compounds from biomass efficiently. Among the studied DESs, the 1 : 2 M mixture of choline chloride and p -toluene sulfonic acid (DESs-6) with an ultra-sound assisted extraction (UAE) method was more efficient to get high extraction yields of flavonoids including myricetin (57.2 mg/g), morin (12.7 mg/g), and rutin (9.1 mg/g) in net DESs. The resulting extraction method in which 50 mg of sample powder was extracted by UAE for 1.5 h using DESs-6 was found to be a more efficient process than conventional extraction methods such as heating plus stirring. Operational conditions including the extractant to sample solid ratio, the effect of water content, the effect of temperature, recycling of DESs, and the effect of ultra-sound irradiation time were investigated. The proposed DESs based extraction procedure attained recovery for flavonoids were in the range 75.6%–96.9%. Therefore, p -toluenesulfonic acid-based DESs may have strong potential as promising materials for the green and efficient extraction of pharmaceutical compounds from other plants or fruits.
研究领域:
植物化学
·
天然产物研究
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药学
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生物技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Qianni Chen,Jiaqi Fan,Lianzhu Lin,Mouming Zhao
The combination of polysaccharides is an effective way to develop prebiotics with stable performance during processing and digestion for human wellness. However, there is little information on optimal screening and complementary regulation of compound polysaccharides. This study aimed to optimally select a combination of Lycium barbarum L. polysaccharide (LBP) and Laminaria japonica polysaccharide (LJP) as a highly efficient prebiotic to regulate the gut probiotics and their metabolites. Two LBPs characterized as rhamnogalacturonan I enriched pectins and two LJPs characterized as fucoidans were obtained by enzyme-assisted acid extraction at moderate and dramatic temperatures and combined in pairs to obtain 4 groups containing 4 proportional combinations. All combinations showed better prebiotic effects than individual LJP. The combination of LBP and LJP extracted at 50 °C at a ratio of 4:1 exhibited the strongest prebiotic effect. The optimal compound polysaccharide achieved superior effect and complementary function via LBP-targeted proliferation of Bifidobacterium , Lactobacillus , and Bacteroides and production of SCFAs and non-SCFA health-associated metabolites, LJP-targeted accumulation of butyrate-producing bacteria and corresponding metabolites, as well as synergistic effect of LJP and LBP at exact proportion. Our study provided theoretical and methodological guidance for optimal screening of compound polysaccharides as new prebiotics.
研究领域:
食品科学
·
微生物学
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营养学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Jianrui Qi,Jie Zhang,Kai Wang,Yifan Cheng,Qinglin Sheng,Ivan Kurtovic,Yahong Yuan,Tianli Yue
There is a lack of research on how Tibetan kefir grains fermentation alters the physicochemical properties and biological activity of Lycium barbarum pulp polysaccharides, despite some reports that fermentation can affect the structure and activity of plant polysaccharides. This study demonstrated that, through fermentation, the molecular weight of polysaccharides decreased from 25.33 to 15.11 kg/mol while the contents of total sugar and uronic acid increased by 19.11% and 40.38%, respectively. Furthermore, after fermentation, the polysaccharides exhibited an uneven and rough surface along with a reduced number of branched chains and triple helix structures. Tibetan kefir grains fermentation enhanced the antioxidant activity of polysaccharides, which may be attributed to an increase in arabinose, galactose, and uronic acid content and a decrease in polysaccharide molecular weight. This research offers an alternative viewpoint on the potential application of Tibetan kefir grains-fermented Lycium barbarum pulp polysaccharides in functional foods.
研究领域:
食品科学
·
营养学
·
生物技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）